Improvement in oven-doors of cooking-stoves



SAMUEL S. UTTER. Oven-Door for Cooking-Stoves. N0. 127,718PaientedJunevH,1872.

AM-FHOTUl/THOGRAPII'IC 00.11. x {nssbmvs's Pnoclss) UNITED STATES PATENTOFFICE.

SAMUEL S. UTTER, OF BROOKLYN, YORK.

IMPROVEMENT IN OVEN-DOORS OF COOKlNG-STOVES.

Specification forming part of Letters Patent No. 127,718, dated June11,1872.

To all whom it may concern:

Be it known that I, SAMUEL S. UTTER, of the city of Brooklyn, State ofNew York, have invented a new and useful Improvement in Oven-Doors ofStoves, Ranges, or other Cooking Apparatus; and hereby declare that thefollowing is a full and complete description thereof.

In order to better reflect the heat and produce a higher temperature inovens, it has been the practice to coat the inside of the ovendoors withsheet-tin but the tin in a short time loses its brightness, and thesurface melts ofi, thereby losing its properties of reflection andbecoming useless. My invention consists in providing the inside ofoven-doors with a material which will have all the properties ofreflection that the bright surface of tin has, and

not being as good a conductor of heat as metal,

will prevent its escape by absorption, thereby raising the temperaturein the oven.

- To produce these improved results, I place alayer of enamel on theinside of the ovendoor, thus giving a polished surface which will bear ahigh temperature without tarnishing, and, by its imperfect conductingqualities, prevent the escape of the heat. This may be done by placing acoating of enamel on the inside surface of the oven-door direct, or byattaching sheets of iron or other material, previously enameled, thereonby means of rivets or other suitable fastenings.

In the drawing, Figure lis a View showing the inside surface of theoven-door, and Fig.

2 is a section through Fig. 1 at the dotted line as w.

A represents the metallic portion of the oven-door and B the enameledsurface thereof.

Any color of enamel may be used for this pur- Claim.

An oven-door having an enameled inside surface, substantially asdescribed.

SAMUEL S. UTTER. Witnesses.

A. B. MALooMsoN,JR., JAMES H. HUNTER.

